(RHSA-2013:1802) Important: rhev-hypervisor6 security and bug fix update

2013-12-12T05:00:00
ID RHSA-2013:1802
Type redhat
Reporter RedHat
Modified 2018-06-07T08:59:37

Description

The rhev-hypervisor6 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes everything necessary to run and manage virtual machines: a subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent.

Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions.

Upgrade Note: If you upgrade the Red Hat Enterprise Virtualization Hypervisor through the 3.2 Manager administration portal, the Host may appear with the status of "Install Failed". If this happens, place the host into maintenance mode, then activate it again to get the host back to an "Up" state.

A divide-by-zero flaw was found in the apic_get_tmcct() function in KVM's Local Advanced Programmable Interrupt Controller (LAPIC) implementation. A privileged guest user could use this flaw to crash the host. (CVE-2013-6367)

Red Hat would like to thank Andrew Honig of Google for reporting this issue.

This updated package provides updated components that include fixes for various security issues. These issues have no security impact on Red Hat Enterprise Virtualization Hypervisor itself, however. The security fixes included in this update address the following CVE numbers:

CVE-2013-2141, CVE-2013-4470, and CVE-2013-6368 (kernel issues)

This update also fixes the following bug:

  • The NVR of the rhev-hypervisor6 rpm and the contents of /etc/system-release did not match. This caused the hypervisor to show an error message "A new version is available; an upgrade option will appear once the Host is moved to maintenance mode." and suggested an update, even though the hypervisor was up to date. The version information in the rpm NVR and /etc/system-release now match. Now, the hypervisor only suggests updating when there is an update available. (BZ#1034817)

Users of the Red Hat Enterprise Virtualization Hypervisor are advised to upgrade to this updated package, which corrects these issues.